FrmKulup.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace BonusProje1
{
    public partial class FrmKulup : Form
    {
        public FrmKulup()
        {
            InitializeComponent();
        }
        SqlConnection baglanti = new SqlConnection(@"Data Source=DESKTOP-1C38CAO\SQLEXPRESS01;Initial Catalog=BonusOkul;Integrated Security=True");
        private void label2_Click(object sender, EventArgs e)
        {

        }
        void liste()
        {
            SqlDataAdapter da = new SqlDataAdapter("Select * from TBLKULUPLER", baglanti);
        DataTable dt = new DataTable();
        da.Fill(dt);
            dataGridView1.DataSource = dt;
        }
        private void FrmKulup_Load(object sender, EventArgs e)
        {
            liste();
        }

        private void BtnListele_Click(object sender, EventArgs e)
        {
            liste();
        }

        private void BtnEkle_Click(object sender, EventArgs e)
        {
            baglanti.Open();
            SqlCommand komut = new SqlCommand("insert into TBLKULUPLER (KULUPAD) VALUES (@P1)", baglanti);
            komut.Parameters.AddWithValue("@P1",TxtKulupAd.Text);
            komut.ExecuteNonQuery();
            baglanti.Close();
            MessageBox.Show("Kulüp Listeye Eklendi","Bilgi",MessageBoxButtons.OK,MessageBoxIcon.Information);
            liste();

        }

        private void pictureBox6_Click(object sender, EventArgs e)
        {
            this.Hide();
        }

        private void pictureBox6_MouseHover(object sender, EventArgs e)
        {
            pictureBox6.BackColor = Color.Black;
        }

        private void pictureBox6_MouseLeave(object sender, EventArgs e)
        {
            pictureBox6.BackColor = Color.Transparent;
        }

        private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            TxtKulupID.Text = dataGridView1.Rows[e.RowIndex].Cells[0].Value.ToString();
            TxtKulupAd.Text = dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();
        }

        private void BtnSil_Click(object sender, EventArgs e)
        {
            baglanti.Open();
            SqlCommand komut = new SqlCommand("Delete From TBLKULUPLER where KULUPID=@P1", baglanti);
            komut.Parameters.AddWithValue("@P1", TxtKulupID.Text);
            komut.ExecuteNonQuery();
            baglanti.Close();
            MessageBox.Show("Kulüp Silme İşlemi Gerçekleşti");
            liste();
        }

        private void BtnGuncelle_Click(object sender, EventArgs e)
        {
            baglanti.Open();
            SqlCommand komut = new SqlCommand("Update TBLKULUPLER set KULUPAD=@P1 where KULUPID=@P2", baglanti);
            komut.Parameters.AddWithValue("@P1", TxtKulupAd.Text);
            komut.Parameters.AddWithValue("@P2", TxtKulupID.Text);

            komut.ExecuteNonQuery();
            baglanti.Close();
            MessageBox.Show("Kulüp Güncelleme İşlemi Gerçekleşti");
            liste();
        }

        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

        }
    }
}